FAN3121 Datasheet, PDF (13/21 Pages) Fairchild Semiconductor – Single 9A High-Speed, Low-Side Gate Driver

Typical Performance Characteristics
Typical characteristics are provided at 25°C and VDD=12V unless otherwise noted.
Figure 40. Rise / Fall Waveforms with 10nF Load
Figure 41. Quasi-Static Source Current with VDD=12V⁽¹³⁾
Figure 42. Quasi-Static Sink Current with VDD=12V⁽¹³⁾ Figure 43. Quasi-Static Source Current with VDD=8V⁽¹³⁾
V_DD
FAN3121/22
(2) x 4.7µF
ceramic
470µF
Al. El.
Current Probe
LECROY AP015
IN
1kHz
I_OUT
1µF
ceramic
V_OUT
C _LOAD
1µF
Figure 44. Quasi-Static Sink Current with VDD=8V⁽¹³⁾
Figure 45. Quasi-Static IOUT / VOUT Test Circuit
Notes:
12. For any inverting inputs pulled LOW, non-inverting inputs pulled HIGH, or outputs driven HIGH; static
IDD increases by the current flowing through the corresponding pull-up/down resistor, shown in Figure 7.
13. The initial spike in each current waveform is a measurement artifact caused by the stray inductance of
the current-measurement loop.
© 2008 Fairchild Semiconductor Corporation
FAN3121 / FAN3122 • Rev. 1.0.0
13
www.fairchildsemi.com